:root {
  color-scheme: dark;
  --bg: #08101f;
  --surface: rgba(16, 28, 44, 0.94);
  --surface-strong: rgba(18, 34, 58, 0.98);
  --text: #f5f7fb;
  --muted: #9bb2d3;
  --accent: #7ad0ff;
  --accent-strong: #3d8dff;
  --success: #3fe58d;
  --danger: #ff6b6b;
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.24);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, rgba(122, 208, 255, 0.22), transparent 24%),
    radial-gradient(circle at bottom right, rgba(78, 101, 255, 0.16), transparent 18%),
    linear-gradient(180deg, #040b17 0%, #081625 45%, #09112a 100%);
  color: var(--text);
}

.hero {
  padding: 40px 24px 20px;
}

.hero-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px;
  border-radius: 32px;
  background: rgba(12, 23, 41, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow);
}

.hero h1 {
  margin: 0.5rem 0 12px;
  font-size: clamp(2.4rem, 4.1vw, 4.8rem);
  letter-spacing: -0.06em;
  line-height: 1.02;
}

.hero p {
  margin: 0;
  max-width: 760px;
  color: var(--muted);
  line-height: 1.7;
}

main {
  max-width: 1120px;
  margin: 0 auto 48px;
  padding: 0 20px 24px;
}

.layout-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1.6fr 1fr;
}

.overview {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card,
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 24px;
  backdrop-filter: blur(20px);
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
}

.section-header h2 {
  margin: 0;
}

.card h2,
.panel h2 {
  margin-top: 0;
  font-size: 1.28rem;
}

.badge {
  display: inline-flex;
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  background: rgba(125, 208, 255, 0.14);
  color: var(--accent);
  border: 1px solid rgba(125, 208, 255, 0.22);
}

.overview .stat {
  min-height: 140px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}

.stat strong {
  font-size: 2.6rem;
}

.task-list {
  display: grid;
  gap: 18px;
}

.task-card {
  display: grid;
  gap: 14px;
  padding: 22px;
  border-radius: 24px;
  background: rgba(8, 16, 30, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.task-card header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
}

.task-card h3 {
  margin: 0;
  font-size: 1.12rem;
}

.task-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.task-card .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

button,
input[type="text"],
input[type="password"],
textarea,
select,
option {
  font: inherit;
  color: var(--text);
}

select,
option {
  background: rgba(10, 18, 32, 0.96);
}

button {
  appearance: none;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  padding: 0.95rem 1.4rem;
  color: #0f1724;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  transition: transform 0.22s ease, filter 0.22s ease;
  box-shadow: 0 18px 28px rgba(0, 87, 187, 0.14);
}

.admin-page {
  padding-bottom: 24px;
}

.admin-grid {
  align-items: start;
}

.admin-box {
  padding: 24px;
}

.admin-page .card {
  margin-bottom: 22px;
}

select,
input[type="date"],
input[type="time"] {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

option {
  color: var(--text);
  background: rgba(10, 18, 32, 0.96);
}

.status-pill {
  display: inline-flex;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}

.status-pill.rejected {
  background: rgba(255, 107, 107, 0.18);
  color: #ff6b6b;
}

.validation-choice {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.validation-choice .radio-group,
.validation-options {
  display: grid;
  gap: 8px;
}

.validation-choice label,
.validation-options label {
  font-weight: 500;
}

.validation-options label input {
  margin-right: 0.5rem;
}

.status-pill {
  display: inline-flex;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}

.status-pill.rejected {
  background: rgba(255, 107, 107, 0.18);
  color: #ff6b6b;
}

.status-pill.success {
  background: rgba(63, 229, 141, 0.18);
  color: #3fe58d;
  border: 1px solid rgba(63, 229, 141, 0.35);
}

.card {
  margin-bottom: 24px;
}

.admin-box {
  padding: 22px;
}

.task-list {
  display: grid;
  gap: 22px;
}
button:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.4rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #0f1724;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.22s ease, filter 0.22s ease;
}

.button-link:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

button.secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  box-shadow: none;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

button.danger {
  background: rgba(255, 107, 107, 0.18);
  color: var(--danger);
  border: 1px solid rgba(255, 107, 107, 0.28);
}

.tag {
  padding: 0.38rem 0.75rem;
  border-radius: 999px;
  background: rgba(125, 208, 255, 0.12);
  color: var(--accent);
  font-size: 0.85rem;
  width: fit-content;
}

.solution-box,
.admin-box {
  margin-top: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 20px;
}

label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
  color: var(--text);
}

input[type="text"], input[type="password"], textarea, select {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 16px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  outline: none;
  resize: vertical;
}

textarea {
  min-height: 140px;
}

.file-input-wrapper {
  display: grid;
  gap: 0.65rem;
}

input[type="file"] {
  width: 100%;
  padding: 10px 12px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

.file-meta {
  display: block;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.95rem;
  color: var(--muted);
}

.file-meta a {
  color: var(--accent);
  text-decoration: none;
}

.file-meta a:hover {
  text-decoration: underline;
}

.action-list {
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.hint {
  font-size: 0.95rem;
  color: var(--muted);
  margin-top: 12px;
}

.success-banner {
  margin: 20px 0 0;
  padding: 16px;
  border-radius: 18px;
  background: rgba(63, 229, 141, 0.12);
  border: 1px solid rgba(63, 229, 141, 0.18);
  color: #d0ffea;
}

.admin-panel {
  display: grid;
  gap: 18px;
}

.admin-panel form {
  display: grid;
  gap: 14px;
}

.small-note {
  color: var(--muted);
  font-size: 0.95rem;
}

.spacer {
  height: 24px;
}

@media (max-width: 1000px) {
  .layout-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .overview {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 28px 16px 16px;
  }
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 7, 15, 0.78);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 20;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  width: min(720px, 100%);
  background: rgba(7, 16, 28, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.modal header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.modal h3 {
  margin: 0;
  font-size: 1.3rem;
}

.close-button {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.footer-note {
  text-align: center;
  color: var(--muted);
  margin-top: 14px;
  font-size: 0.95rem;
}